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Yewhick testers measure pH, TDS, EC, ORP, salinity, temperature, and sometimes chlorine or hydrogen, depending on the model.
Yes, our testers are designed to handle both freshwater and saltwater environments, including aquariums and pools.
While some multifunctional models exist, we recommend using separate testers optimized for each scenario for best accuracy.
Most models offer ±0.01 accuracy for pH, ±2% for TDS and EC, and ±0.1°C for temperature.
Yes, all Yewhick digital testers include ATC for accurate results in varying temperatures.
Some models come with starter buffer packs. Refill kits are available on our website.
For frequent use, we recommend calibrating once every 1–2 weeks or before each critical test.
No. Most testers have an operating range of 0–60°C (32–140°F). Do not test boiling water.
Rinse the probe with distilled water, dry gently with a lint-free cloth, and store in a cool, dry place. Some probes should be stored in a moist cap or storage solution.
Test for pH (7.2–7.6), chlorine (1–3 ppm), and ORP (650–750 mV). Use our pool tester for real-time tracking.
Below 300 ppm is excellent; under 600 ppm is still considered acceptable in most regions.
No. These require specialized lab tests. Our devices monitor basic indicators like pH, EC, and ORP which can reflect changes in water quality.
Weekly is ideal. Increase frequency after major changes like water additions or fish medication.
Yes. Each product includes a user manual, and many models feature one-button operation and auto-calibration.
Check if the probe is clean, recalibrate the device, and make sure you're within the measurement range. Contact support if the issue persists.
Yes! Our expert team is available via email and chat to help with troubleshooting, calibration, or general usage tips.
Yes. Test the water before and after filtration to evaluate filter performance.
Replacement accessories are available on yewhick.com, under each product page.
